Ambient Marketing Idea in the subway for Netflix and the Web Series Black Mirror. Taking advantage of the similitude between the wagon´s windows, when the train is moving among stations, with a black mirror (as there is no light coming from outside it represents exactly the name of the Series). For producing the idea a white thin layer sticker would be used on the windows, that could only be seen when the train is between stations. This would look as if the advertisement suddenly appears out of nowhere, making a reference to where is placed.
